A meeting of the Working Group on Numerical Weather Analysis and Forecasting of the World Meteorological Organization (WMO) was held in Stockholm from March 2 to 6, 1959, for the purpose of reviewing the present status in the fields of numerical weather analysis and forecasting; outlining present research and likely developments in the future; and specifying problems arising from the utilization of numerical methods for weather analysis and forecasting. These last included training of personnel, communication facilities, and the international collaboration required for successful programs of work in weather analysis and forecasting. A one-group code, capable of extension as the need arose, was proposed for the transmission of essential data.